<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
<link rel='stylesheet' href='../css/float.css'/>
</head>
<body>
<div id='p1'>
	<div id='c1'>c1</div>
	<div id='c2'>c2</div>
	<div id='c3'>c3</div>
</div>

<div id='p2'>
	<div id='c4'>c4</div>
	<div id='c5'>c5</div>
	<div id='c6'>c6</div>
</div>

<div id='p3'>
	<div id='c7'>c7</div>
	<div id='c8'>c8</div>
	<div id='c9'>c9</div>
</div>

</body>
</html>